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1.  Preparation

  

                                 Electrical shock or  burn hazard.                                

                                 Installation of this Transient Surge

                                Filter should only be made by 

qualified personnel.  Failure to lockout electrical power 

during installation or maintenance can result in fatal 

electrocution or severe burns. Before making any 

connections to the electrical panel, be sure that power 

has been removed from all associated wiring, electrical 

panels, and other electrical equipment.

The installation of this surge filter should be 

1.

installed in accordance with all applicable codes, 

such as the National Electrical Code (NEC

®)

, or the 

Canadian Electrical Code.

Check to make sure line voltage does not exceed 

2.

surge filter voltage requirement. Prior to installation 

ensure that the TSF is of the correct voltage, 

current, and frequency rating for your application.

The ground / earth terminal must be connected to a 

3.

low impedance earth for correct operation.

Do not perform a “Dielectric Withstand” or use a 

4.

Mega-Ohm Meter (Megger) to test circuits that are 

protected with TSF units. Damage may occur to the 

TSF units.

Follow all instructions to ensure correct and safe 

5.

operation.

Do not attempt to open or tamper with TSF units in 

6.

any way as this may compromise performance and 

will void warranty.

2.  Introduction

Transient Surge Filters (TSF) are designed for simple 

installation onto 35mm DIN rails. They can be selected 

for use on distribution systems with nominal RMS 

voltages of 120V or 240V at frequencies of 50/60Hz. 

The TSF6A24V unit is suitable for 12V and 24Vac/dc 

signaling and control systems.

3.  Quick Installation Overview

Install in the following manner:

Ensure that power is removed from the area and 

1.

the circuits that will be connected.

Snap lock the TSF module to the DIN rail.

2.

Install the appropriate upstream overcurrent 

3.

protection (refer to Section 8)

Connect wiring to the indicated input and output 

4.

terminals.

4.  Protection Concepts

The terminals on the TSF units are labeled 

“INPUT/LINE” (unprotected side) and “OUTPUT/LOAD” 

(protected side) assuming that the source of the 

transients is on the input side of the TSF module.

To optimize effectiveness of the TSF protection, the 

unprotected and protected wiring should be separated. 

Wiring from the exposed transient source to the TSF 

should be considered unprotected and kept 

approximately 12” (300mm) from all other wiring 

wherever possible. Wiring on the equipment side of the 

TSF should be considered protected.

The separation of protected and unprotected wiring is 

recommended to minimize the risk that transients on 

unprotected wiring may cross couple onto protected 

circuits and diminish the level of protection available 

from the TSF module.

Table 1:  Model and Plug-in Module Part Number

TECHNICAL SUPPORT

www.erico.pentair.com

IP8276_E

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INSTRUCTION SHEET

Pentair, CADDY, ERICO CADWELD, ERICO CRITEC, ERICO, ERIFLEX, and LENTON are owned by Pentair or its global affiliates. All other trademarks are

the property of their respective owners. Pentair reserves the right to change specifications without prior notice.

WARNING:

Pentair products shall be installed and used only as indicated in Pentair product instruction sheets and training materials. Instruction sheets are available at 

1.

www.erico.pentair.com

 and from your Pentair customer service representative.  

Pentair products must never be used for a purpose other than the purpose for which they were designed or in a manner that exceeds specified load ratings.

2.

All instructions must be 

completely

 followed to ensure proper and safe installation and performance.  

3.

Improper installation, misuse, misapplication or other failure to completely follow Pentair's instructions and warnings may cause product malfunction, property 

4.

damage, serious bodily injury and/or death, and void your warranty.

SAFETY INSTRUCTIONS: 

All governing codes and regulations and those required by the job site must be observed. 

Always use appropriate safety equipment such as eye protection, hard hat, and gloves as appropriate to the application.
NEC is a registered trademark  of, and National Electrical Code (NEC) standard  is a  copyright of the  National  Fire Protection  Association,  Inc. UL, UR, cUL, cUR, 

cULus  and cURus are registered certification marks of UL LLC. 

Transient Surge Filter

ERICO CRITEC TSF Series

© 2016 Pentair All Rights Reserved

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